A tweet about people claiming fealty to Hogwarts houses went up on Tuesday, and has caused some conversation among Potterheads.

Every single person who calls themself a “Proud Slytherin” is a fucking Hufflepuff.

— kate bond (@LadyKateBond) May 14, 2018

Okay, let's unpick this.

The sorting hat explains in its various songs that each of the four Hogwarts founders had a quality they prized in their students. Here's a recap of what the sorting hat said about Hufflepuff and Slytherin in Harry's first sorting. Read more...